RE: java to rpg problem -- JAVA400-L

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You have to export the procedures and bundle them in a *SRVPGM.  In other
words, they have to be bundled in such a way that a CL program could use
them via CALLPRC or another RPG program could use them via CALLB or CALLP.

Once you have done that, you can then call them via the "distributed
program call" method you refer to (PCML and the Toolbox).  If you are
running the Java code on the iSeries, just put the Toolbox Native
Optimizations in the CLASSPATH and the call will run in the same job as
the Java code and not require you to supply a user name and password on
the AS400 connection class.

Mark









"Patrick Goovaerts" <pgoovaerts@pandora.be>
Sent by: java400-l-admin@midrange.com
12/05/2002 12:33 PM
Please respond to java400-l


        To:     <java400-l@midrange.com>
        cc:
        Subject:        RE: java to rpg problem


We now how to use the 'distributed program call', that's not the
problem.  We can call rpg-programs and recieve data from it without any
problem but that's not exactly what we want.

What we are trying to use RPG-modules (or subroutines in it) as if it
were java-methods...

When we put the java program on the iSeries, the
"System.loadLibrary("PROGRAMNAME");" statement is executed.  Of course
this isn't of much help because we want to run it from PC's (with
GUI-interface).

Again, it seems to me that the linking of the object "programname" isn't
found because, on the PC, java looks for a local "programname.dll" file
while it should be looking for the object on the iSeries.  We tried
other directives like "//sysname/library/programname" or
"//sysname/library.programname",etc... to force looking on the iSeries
but it doesn't help.



Patrick Goovaerts
pgoovaerts@pandora.be
TEL: 0032-3-6472715
GSM:0498610325



-----Oorspronkelijk bericht-----
Van: java400-l-admin@midrange.com [mailto:java400-l-admin@midrange.com]
Namens Joe Pluta
Verzonden: donderdag 5 december 2002 17:26
Aan: java400-l@midrange.com
Onderwerp: RE: java to rpg problem


> From: P.Goovaerts@Clipper.Be
>
> Anyone using java to rpg-modules connections on iSeries???  We have
> written an object-oriented RPG program following MVC pattern.  The RPG

> program runs fine and now we have written a java program which uses
> the RPG modules but displays result in a GUI.

I call programs using IBM's Java Toolbox (JTOpen) and the ProgramCall
class. This allows Java programs on one machine to call RPG programs
running on a different box.  Is this what you're looking for?

Other options include direct JNI calls and stored procedures.

Joe

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